Backwards Micro Usb?Support

I have been trying to get my Mother-in-Laws Xoom to charge correctly. They have a 850ma phone charger that isn't keeping up and a Motorola basic dock that the Xoom won't sit in. The Xoom is a refurb and the micro usb port may be installed backwards. It is in this configuration with the screen facing up;

Is this the correct orientation, or is the dock incorrect?
I am having another issue as well: The manual instructs that holding the volume + button while pressing the power button will reboot the Xoom. It does hibernate or sleep the Xoom, but it doesn't reboot. The battery usage tab still says that it has been on for days. The Xoom is an MZ505 running Android 4.0.4.

I have a Xoom running 4.04 too, I don't have a dock for it so I honestly can't comment on that part of what you're asking. The micro USB port does look like its upside down compared to other tablets/phones and mine will only charge properly with the charger provided with the Xoom, anything else will just trickle charge it very very slowly. Since the 4.04 update the reboot method is a little bit different from what the manual says, use the power button to put it to sleep then hold power and volume down together for a few seconds and it should reboot. You need to put it to sleep first otherwise this method takes a screen shot. Hope that helps you a bit.

You can charge it with a power adapter (what most people have/use). It goes into the charging hole in the bottom center of the Xoom.

The other way it can charge is while on a dock. The dock does NOT charge through the USB port (many people make that mistake). The two gold pins on the dock make contact with the two gold pads on the Xoom to charge it.